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原创 科普 | 细胞游离DNA(Cell free DNA,cfDNA)基本知识简介
游离DNA(Circulating free DNA or Cell free DNA,cfDNA),循环游离DNA或者细胞游离DNA,是释放到血浆中的降解的DNA片段。 cfDNA存在于人体的各种体液中,随组织损伤、癌症和炎症反应等发生浓度变化。母亲和胎儿-胎盘单位都会产生cfDNA,正常人体的cfDNA主要通过细胞凋亡 ...
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